Flow division management device for air inflation and supply

Abstract

The embodiment of the invention provides a shunting management device for air inflation and supply, and relates to the field of low-temperature liquid air inflation and supply technology detection. A flow dividing management device for gas filling and supplying comprises a storage tank, a gasifier, a pressure reducing valve set, a control console and a flow dividing pipeline, low-temperature liquid nitrogen enters the gasifier from the storage tank through the pipeline, liquid nitrogen absorbs heat in the gasifier and is converted into gas, and the nitrogen converted into the gas enters the pressure reducing valve set through the pipeline; nitrogen adjusted by the pressure reducing valve set enters the flow dividing pipeline and then is distributed to all devices through different device connecting pipes connected with the flow dividing pipeline, the liquid nitrogen gas supply process is managed through the console, and meanwhile two sets of sealing assemblies are installed at all connecting parts of the flow dividing pipeline. And a gas detection mechanism is rotationally mounted between the two groups of sealing assemblies. The device not only realizes efficient shunting and accurate control of low-temperature nitrogen, but also integrates a leakage detection system, and ensures that waste of resources is reduced.

Description

Technical Field

[0001] This application relates to the technical field of cryogenic liquid gas filling and supply, and more specifically, to a shunt management device for gas filling and supply. Background Art

[0002] In the cryogenic gas (such as liquid nitrogen) filling and supply system, ensuring the safety and reliability of the system is of utmost importance. However, the traditional shunt management system has some deficiencies in detecting and dealing with nitrogen leakage, mainly reflected in the following aspects: Most existing oxygen sensors adopt a static installation method and can only monitor the change of oxygen concentration at specific positions. This design results in a limited monitoring range, making it difficult to comprehensively cover the entire space inside the sealed housing and prone to missing nitrogen leakage points in local areas.

[0003] Due to the limited monitoring range, when nitrogen leakage occurs, the sensor may take a long time to detect a significant decrease in oxygen concentration, thus delaying the alarm and emergency response time. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art that most existing oxygen sensors adopt a static installation method and can only monitor the change of oxygen concentration at specific positions. This design results in a limited monitoring range, making it difficult to comprehensively cover the entire space inside the sealed housing and prone to missing nitrogen leakage points in local areas. For this reason, this application proposes a shunt management device for gas filling and supply.

[0005] A shunt management device for gas filling and supply according to an embodiment of this application includes a storage tank, a vaporizer, a pressure reducing valve group, a control console, and a shunt pipeline. It is characterized in that: cryogenic liquid nitrogen enters the vaporizer from the storage tank through a pipeline. The liquid nitrogen absorbs heat in the vaporizer and is converted into gas. The nitrogen gas converted into gas enters the pressure reducing valve group through a pipeline. After being regulated by the pressure reducing valve group, the nitrogen gas enters the shunt pipeline and is distributed to each device through different equipment connecting pipes connected to the shunt pipeline. At the same time, the control console is used to manage the process of supplying liquid nitrogen gas. At the same time, two sets of sealing components are installed at each connection part of the shunt pipeline. A gas detection mechanism is rotatably installed between the two sets of sealing components. The sealing components seal the connection part of the shunt pipeline, and the gas detection mechanism is used to detect the leaked gas at the connection part of the shunt pipeline inside the sealing component.

[0006] Further, the sealing component includes a sealing housing. On both sides of one end of the sealing housing, adjusting sleeves are hinged. After the two sets of adjusting sleeves are combined, they form an annular structure sleeved on the shunt pipeline.

[0007] Further, ventilation openings are provided on the adjusting sleeve.

[0008] Furthermore, after the two sets of said adjusting sleeves are combined, a pair of positioning sleeves are fixed on the outside, and one side of the pair of positioning sleeves is hinged, and the other side of the pair of positioning sleeves is fixed by bolts.

[0009] Furthermore, a clamping groove is formed on the outside of the adjusting sleeve, and a sealing edge is arranged on one side of the positioning sleeve, and the sealing edge is clamped in the clamping groove.

[0010] Furthermore, the gas detection mechanism includes a gear ring, rotary rings are arranged on both sides of the gear ring, a rotary groove is formed on one side of the sealing shell, the rotary rings are rotatably connected to the rotary groove, and symmetric oxygen sensors are installed on the inner sides of the rotary rings.

[0011] Furthermore, a bracket is fixedly arranged on the outside of the sealing shell, a first gear and a second gear are rotatably arranged on the bracket, the first gear meshes with the gear ring, at the same time the first gear meshes with the second gear, and the second gear is driven by a motor.

[0012] Furthermore, a fixed block is fixedly arranged inside the sealing shell, and a rotary blade is rotatably arranged on one side of the fixed block.

[0013] Furthermore, conical gears one are fixedly connected to the rotating shafts at both ends of the first gear, a double-headed gear is rotatably arranged on the sealing shell, the upper end of the double-headed gear is located outside the sealing shell and meshes with the conical gear one, and the lower end of the double-headed gear is located inside the sealing shell and meshes with the conical gear two connected to one end of the rotary blade.

[0014] Furthermore, a certain space is reserved between the outer wall of the sealing shell and the outer wall of the shunt pipeline.

[0015] The beneficial effects of the present application are as follows: Through the meshing of the first gear, the second gear and the gear ring, the gear ring drives the oxygen sensor to rotate, so that the oxygen sensor detects the concentration of oxygen inside the sealing shell, thereby judging whether there is nitrogen leakage. The rotation of the oxygen sensor enables the oxygen sensor to perform a full-range detection of various positions inside the sealing shell, significantly improving the detection efficiency and accuracy. And while the first gear rotates, through the meshing of the conical gear one and the double-headed gear, and the meshing of the double-headed gear and the conical gear two, the rotary blade rotates, promoting the rapid mixing of nitrogen and oxygen inside the sealing shell, helping to improve the detection sensitivity of the oxygen sensor and shortening the response time. Furthermore, it can detect in time when nitrogen leaks, precisely manage the shunt to reduce energy waste, providing a solid guarantee for the entire shunt management system.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application and should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic perspective view of the overall structure of a flow splitting management device for charging and supplying gas according to an embodiment of the present application; Figure 2 is a partial schematic view of the overall structure according to an embodiment of the present application; Figure 3 is a schematic cross-sectional view of the structure of a sealing component according to an embodiment of the present application; Figure 4 is a schematic view of the structure of a sealing component and a gas detection mechanism according to an embodiment of the present application; Figure 5 is a schematic view of the disassembled structure of a sealing component according to an embodiment of the present application; Figure 6 is a schematic view of the disassembled structure of a sealing component and a gas detection mechanism according to an embodiment of the present application; Figure 7 is a schematic view of the structure of a gas detection mechanism according to an embodiment of the present application; Figure 8 is a schematic view of the structure of a sealing shell according to an embodiment of the present application; Figure 9 is a schematic view of the structure of a positioning sleeve according to an embodiment of the present application.

[0019] Icon: 1. Storage tank; 2. Vaporizer; 3. Pressure reducing valve group; 4. Console; 5. Flow splitting pipeline; 6. Equipment connecting pipe; 7. Sealing component; 71. Sealing shell; 72. Adjusting sleeve; 73. Card slot; 74. Fixed block; 75. Rotating slot; 76. Positioning sleeve; 77. Sealing edge; 78. Bolt; 8. Gas detection mechanism; 81. Gear ring; 82. Rotating ring; 83. Oxygen sensor; 84. Bracket; 85. First gear; 86. Second gear; 87. Bevel gear one; 88. Double-headed gear; 89. Bevel gear two; 891. Rotating blade. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of this application claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0023] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of this application.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0026] In this application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0028] Next, a flow splitting management device for charging and supplying gas according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0029] As Figure 1 shown, a flow splitting management device for charging and supplying gas according to an embodiment of the present application includes a storage tank 1, a vaporizer 2, a pressure reducing valve group 3, a control console 4 and a flow splitting pipeline 5. The storage tank 1 stores cryogenic liquid nitrogen. The outlet of the storage tank 1 is usually equipped with valves and safety devices (such as emergency shut-off valves, safety relief valves) to ensure safe operation. The cryogenic liquid nitrogen enters the vaporizer 2 through a pipeline from the storage tank 1. The liquid nitrogen absorbs heat in the vaporizer 2 and is converted into gas. The converted nitrogen gas enters the pressure reducing valve group 3 through a pipeline. The pressure reducing valve group 3 adjusts the pressure of the output gas to meet the requirements of downstream equipment or users. The pressure reducing valve group 3 can set outlets according to different user requirements, and the outlets are equipped with independent pressure regulating valves and flow control valves to ensure the stability of the pressure and flow rate of the pipeline.

[0030] After the nitrogen gas adjusted by the pressure reducing valve group 3 enters the flow splitting pipeline 5, the nitrogen gas is distributed to each device through different device connecting pipes 6 connected to the flow splitting pipeline 5, and the management of the liquid nitrogen gas supply process is realized through the control console 4. Temperature sensors are installed inside or outside the storage tank 1 and at the inlets and outlets of the vaporizer 2. The temperature sensors detect the temperature of the nitrogen gas to prevent overcooling or overheating phenomena and ensure the stable operation of the system. Pressure sensors are installed on the storage tank 1, the vaporizer 2, the pressure reducing valve group 3 and the flow splitting pipeline 5 to ensure the stability of the pressure at each point in the system and avoid potential safety hazards caused by pressure fluctuations. Flow meters are installed at the outlets of the vaporizer 2 and the pressure reducing valve group 3 to monitor the flow rate of the gasified gas. The control console 4 integrates an advanced SCADA data acquisition and monitoring system or a PLC programmable logic controller. The control console 4 is connected to all sensors, obtains data in real time and performs analysis and processing, can monitor and control the operating state of the entire system in real time, ensure the accurate and controllable gas supply volume for each user, and achieve precise flow splitting management.

[0031] Secondly, as Figure 2As shown, two sets of sealing components 7 are installed at each connection part of the shunt pipeline 5. One set of sealing components 7 is fixed on the shunt pipeline 5, and the other set of sealing components 7 is fixed on the pipeline connected to the shunt pipeline 5 (such as the equipment connecting pipe 6 and the pipeline of the pressure reducing valve group 3).

[0032] A gas detection mechanism 8 is rotatably installed between the two sets of sealing components 7. The sealing components 7 seal the connection part of the shunt pipeline 5, and the gas detection mechanism 8 is used to detect the leaked gas at the connection part of the shunt pipeline 5 inside the sealing components 7.

[0033] Specifically, as Figures 3 to 9 shown, the sealing component 7 includes a sealing shell 71. On both sides of one end of the sealing shell 71, an adjusting sleeve 72 is hinged. This design enables, during the installation process, the sealing shell 71 to be conveniently sleeved on the shunt pipeline 5 by opening a pair of adjusting sleeves 72. After the installation is completed, the two adjusting sleeves 72 are combined to form a complete annular structure, which is tightly sleeved on the shunt pipeline 5. In this way, the two sealing shells 71 can effectively seal the connection part of the shunt pipeline 5, thereby providing a closed detection environment for the gas detection mechanism 8. A certain space is reserved between the outer wall of the sealing shell 71 and the shunt pipeline 5. This space provides a necessary detection area for gas detection. Within this area, the gas detection mechanism 8 can quickly and accurately detect any potential gas leakage. For the convenience of observation and operation, the sealing shell 71 is made of a transparent material, which not only improves the visibility but also facilitates the daily inspection and maintenance work.

[0034] To further improve the stability and reliability of the sealing shell 71 during use, when the two sets of adjusting sleeves 72 are combined, a pair of positioning sleeves 76 are fixed on the outside thereof. Specifically, one side of a pair of positioning sleeves 76 is connected by a hinge, and the other side is fastened by a bolt 78. This design not only enhances the overall structural stability of the sealing shell 71 but also ensures that the adjusting sleeves 72 can maintain a firm and tight sealing state during use.

[0035] And a clamping groove 73 is opened on the outside of the adjusting sleeve 72, and a sealing edge 77 is provided on one side of the positioning sleeve 76. When the positioning sleeve 76 fixes the adjusting sleeve 72, the sealing edge 77 can be clamped in the clamping groove 73 to further improve the stability of the adjusting sleeve 72.

[0036] A ventilation opening is opened on the adjusting sleeve 72, and the ventilation opening allows the air inside the sealing shell 71 to exchange with the external environment, thereby accelerating the mixing and diffusion of any leaked nitrogen with the surrounding air.

[0037] To ensure that the gas detection mechanism 8 can dynamically detect the leakage at the connection part of the shunt pipeline 5 inside the sealing assembly 7, the device enables the oxygen sensor 83 to rotate and detect the internal space of the sealing shell 71 through the combination of the gear ring 81 and the rotating ring 82, thereby achieving all-round and highly sensitive detection.

[0038] As Figure 3 and Figure 7 shown, the gas detection mechanism 8 includes the following key components: The gear ring 81 is located at the core of the gas detection mechanism 8, and rotating rings 82 are arranged on both sides of it. The gear ring 81 is responsible for driving the oxygen sensor 83 to rotate for detection. Rotating grooves 75 are provided on the sealing shells 71 of the two sealing assemblies 7. One side of the rotating ring 82 is rotatably connected to the sealing shell 71 installed on the shunt pipeline 5, and the other side is inserted into the rotating groove 75 provided on the sealing shell 71 of the equipment connecting pipe 6. The rotating ring 82 can not only rotate freely in the rotating groove 75 but also ensure the tight connection between the sealing shells 71. The oxygen sensors 83 are symmetrically installed on the inner side of the rotating ring 82. As the gear ring 81 rotates, the oxygen sensors 83 can cover various positions inside the sealing shell 71 to achieve all-round detection.

[0039] At the same time, a bracket 84 is fixedly arranged on the outer side of the sealing shell 71. A first gear 85 and a second gear 86 are rotatably arranged on the bracket 84. The first gear 85 meshes with the gear ring 81, and at the same time, the first gear 85 meshes with the second gear 86. The second gear 86 is driven by a motor. By driving the second gear 86 by the motor, the first gear 85 rotates. The motor is a forward and reverse motor, and the teeth outside the gear ring 81 are semi-circular, so that the first gear 85 causes the gear ring 81 to rotate reciprocally forward and backward, which can not only meet the large-area coverage detection range but also not affect the power supply connection of the oxygen sensor 83.

[0040] Furthermore, as Figure 3 shown, a fixed block 74 is fixedly arranged inside the sealing shell 71. A rotating blade 891 is rotatably arranged on one side of the fixed block 74. The fixed block 74 serves as the support structure of the rotating blade 891 to ensure that the rotating blade 891 can operate stably inside the sealing shell 71. When nitrogen leaks, the high-speed rotation of the rotating blade 891 can quickly break the local accumulation state of nitrogen and make it spread to the entire sealing shell 71 faster, thereby improving the response speed and detection accuracy of the oxygen sensor 83.

[0041] In order to make the rotating blade 891 rotate automatically, we designed a linkage mechanism. This mechanism fixedly connects bevel gear 1 87 to the rotating shafts at both ends of the first gear 85, and transmits power to the rotating blade 891 through the double-headed gear 88. Specifically, the double-headed gear 88 is rotatably arranged on the sealing shell 71. The double-headed gear 88 has two gear parts, the upper end is located outside the sealing shell 71 and meshes with bevel gear 1 87, and the lower end is located inside the sealing shell 71 and meshes with bevel gear 2 89. When the motor drives the second gear 86, through the meshing action of the first gear 85, the gear ring 81 is driven to rotate. The rotation of the first gear 85 not only drives the gear ring 81, but also transmits the rotational motion to the double-headed gear 88 through bevel gear 1 87 fixed to the rotating shafts at its both ends. The upper end of the double-headed gear 88 starts to rotate driven by bevel gear 1 87, and at the same time its lower end also transmits the rotational motion to bevel gear 2 89. Bevel gear 2 89 converts the rotational motion into the rotation of the rotating blade 891, generating a strong air flow inside the sealing shell 71, quickly breaking the local accumulation state of nitrogen, accelerating the mixing of nitrogen and oxygen, and making it spread faster throughout the sealing shell 71. This greatly improves the detection sensitivity of the oxygen sensor 83 to potential leakage points. Since the rotating blade 891 and the oxygen sensor 83 are both controlled by the same drive source, the actions between them are more coordinated, ensuring the stability and accuracy of the detection process.

[0042] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A flow distribution management device for gas filling and supply, comprising a storage tank (1), a vaporizer (2), a pressure reducing valve group (3), a control console (4) and a flow distribution pipeline (5), characterized in that: Low-temperature liquid nitrogen enters the vaporizer (2) from the storage tank (1) through a pipeline. The liquid nitrogen absorbs heat in the vaporizer (2) and is converted into gas. The converted nitrogen enters the pressure reducing valve group (3) through a pipeline. After being regulated by the pressure reducing valve group (3), the nitrogen enters the diversion pipeline (5). The nitrogen is distributed to various devices through different equipment connecting pipes (6) connected to the diversion pipeline (5). The liquid nitrogen gas supply process is managed through the control console (4). At the same time, two sets of sealing components (7) are installed at various connection parts of the diversion pipeline (5). A gas detection mechanism (8) is rotatably installed between the two sets of sealing components (7). The sealing components (7) seal the connection parts of the diversion pipeline (5). The gas detection mechanism (8) is used to detect gas leakage at the connection parts of the diversion pipeline (5) inside the sealing components (7).

2. The flow distribution management device for filling and supplying gas according to claim 1, characterized in that: The sealing assembly (7) comprises a sealing shell (71), and both sides of one end of the sealing shell (71) are hingedly connected with adjustment sleeves (72), and the two sets of adjustment sleeves (72) are combined to form an annular structure sleeved on the diversion pipeline (5).

3. The flow distribution management device for filling and supplying gas according to claim 2, characterized in that: The adjustment sleeve (72) is provided with a ventilation hole.

4. The flow distribution management device for filling and supplying gas according to claim 3, characterized in that: After the two groups of adjustment sleeves (72) are combined, a pair of positioning sleeves (76) are fixed on the outside, and one side of the pair of positioning sleeves (76) is hinged, and the other side of the pair of positioning sleeves (76) is fixed by bolts (78).

5. The flow distribution management device for filling and supplying gas according to claim 4, characterized in that: A clamping groove (73) is provided on the outer side of the adjustment sleeve (72), and a sealing edge (77) is provided on one side of the positioning sleeve (76), and the sealing edge (77) is clamped in the clamping groove (73).

6. The flow distribution management device for filling and supplying gas according to claim 2, characterized in that: The gas detection mechanism (8) comprises a gear ring (81), with rotating rings (82) being provided on both sides of the gear ring (81), a rotating groove (75) being provided on one side of the sealing shell (71), the rotating ring (82) being rotatably connected to the rotating groove (75), and a symmetrical oxygen sensor (83) being installed on the inner side of the rotating ring (82).

7. The flow distribution management device for filling and supplying gas according to claim 6, characterized in that: A bracket (84) is fixedly arranged on the outer side of the sealing shell (71), and a first gear (85) and a second gear (86) are rotatably arranged on the bracket (84); the first gear (85) meshes with the gear ring (81), and the first gear (85) meshes with the second gear (86); the second gear (86) is driven by a motor.

8. The flow distribution management device for filling and supplying gas according to claim 7, characterized in that: A fixed block (74) is fixedly disposed inside the sealing shell (71), and a rotating blade (891) is rotatably disposed on one side of the fixed block (74).

9. The flow distribution management device for filling and supplying gas according to claim 8, characterized in that: A bevel gear 1 (87) is fixedly connected to the rotating shafts at both ends of the first gear (85), and a double-headed gear (88) is rotatably arranged on the sealing shell (71), the upper end of the double-headed gear (88) is located outside the sealing shell (71) and meshes with the bevel gear 1 (87), and the lower end of the double-headed gear (88) is located inside the sealing shell (71) and meshes with the bevel gear 2 (89) connected to one end of the rotating blade (891).

10. The flow distribution management device for filling and supplying gas according to claim 2, characterized in that: A certain space is reserved between the sealing shell (71) and the outer wall of the diversion pipe (5).

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